Baking pan and method of making the same



July 9, 1940- J. G. JACKSON BAKING PAN AND METHOD OF MAKING THE SAME 3 Sheets-Sheet 1 Filed April 1a, 1958 INVENTOR. Joseph G ackson ATTORNEY.

y 9, J. G. JACKSON 2,207,622

BAKING PAN AND METHOD OF MAKING THE SAME Filed April 18, 1958 3 Sheets-Sheet 2 5' 4 v 33 24' a- Jmfi. Q a 25 4- Z? 26 I 15 i l 1 17 5 p Fig. 3.

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INVENTQR.

ac kson ATTO I EY.

y 1940- d J; G. JACKSON BAKING PAN AND METHOD CF MAKING THE SAME Filed April 18, 1938 3 Sheets-Sheet I5 R m k C ma G 1" 0| 6 8 0 J Y B 1 w F ATTORNEY.

Patented July 9, 1940 UNITED STATES PATENT OFFICE BAKING PAN AND METHOD oF MAKING THE SAME Joseph G. Jackson, Oak Park, Ill., assignor to The Edward Katzinger Company, Chicago, 111., a corporation of Illinois Application April 18, 1938, Serial No. 202,643

9 Claims. (01. 53-6) This invention relates to baking pans and particularly to the corner construction thereof and the assembly of a plurality of such pans into a multiple unit.

This invention has for its object the provision of a corner construction for baking pans whereby the wire or metal frame encircling the pan walls and forming the base or core of the head at the edges thereof is completely covered at the corlO ners of the pan, thereby reinforcing the corners and eliminating the presence of exposed and raw metal edges.

' This invention has as a further object the provision of a multiple pan unit wherein the individual pans are secured one to the other by straps, and the creation of smooth uninterrupted joints between coacting straps of the set, whereby rough and raw edges of metal are eliminated and the liability of hooking is reduced if not entirely eliminated.

Another feature of the present invention is the provision of 'a strap so constructed and arranged with respect to the pans and the bead at the upper edges thereof to'provide extra reinforcement for the walls of the pans.

With the above and other objects in view, as will be apparent, this invention consists in the construction, combination and arrangement of parts, all as hereinafter more fully described,

claimed and illustrated in the accompanyingg. 6 is an enlarged fragmentary plan view of one corner of the metal blank from which the individual pan is made, illustrating the form of the corner construction prior to assembly of the individual pan;

' Fig. 7 is an enlarged fragmentary top plan view v of the corner shown in Fig. 6, during the initial assembly thereof, including a dotted line showing of the wire frame in position for final assembly. Fig. 8 is an enlarged fragmentary bottom plan view of the same corner when finally assembled with the wire frame.

Reference being had more particularly to the drawings, In, H and I2 designate the respective pans of a pan set, each of uniform rectangular design and construction, bound or secured'together in aligned and spaced relation by means 5 of straps 25 which coact with and extend across the aligned ends of the pans aforesaid. While the drawings illustrate a unitary assembly of three baking pans, comprising two end pans I 0 v and 12 and an intermediate pan II, it will be 10 apparent that fewer or greater numbers of pans may be included in the assembly if. desired.

Each of the pans lil, H and I2 is provided with an outstanding peripheral bead or flange l4,

containing a reinforcing wire I 5. In forming 16 this type of pan, the side walls I6 and end walls l3 of the sheet or material forming the pan are folded to an angular position with relation to the bottom ll, developing a fullness of material at the corners that is commonly taken care of by creating a V-shaped fold or flap l8 of such surplus, and flattening and bending the same into engagement with the end wall [3, as shown in Fig. 8. Preferably, the material for the pan is so cut that the top of these flaps or folds will lie substantially horizontally and closely adjacent to the reinforcing wire l5. The flanges I4 are bent outwardly, downwardly, and then inwardly over the reenforcing wire I5 so that the edges thereof rest in close proximity to the outer surface of the pan.

In order to providethe corner construction of the individual pan as contemplated by this invention, at the points where the flanges l4 join each other, it is necessary to provide .an abutting joint between ,said adjoining ends of the flanges after they have embraced and engaged the wire I5. To accomplish this, the corners of the sheet at what may be said to be the terminals of the flanges M, are cut oncurves, the curve'at the end of one flange adapted to coact with the curve at the adjoining end of the next adjacent flange. This forming of theends of the flanges is accomplished by cutting from each corner of the sheet a section of metal having the irregularly formed base as shown in Fig. 6. This corner edge of the sheet is formed by cutting away or notching the same to produce an angular projection IS, the apex of which constitutes the outer corner of the V-shaped fold or flap l8 while the inner upper corner of the flap l8 occurs at the points 20 and 2|. By thus notching the corners of the sheet, straight strips or flanges M are left on the ends and sides of the blank, which coact with the reinforcing wire l5 to provide a continuous outstanding peripheral bead on the pan. From the points 33 and 2i, respectively, the end edges of the flanges l4 curve outwardly as at 22 to connect with the outer edge of the flange. Thus, the curved end of each flange starts at the associated point or and curves outwardly as at 22 to connect with the outer longitudinal edge of the flange to form a tongue 22* on the end of each flange i l.

After the sheet has been formed as indicated in Fig. 6 with each corner thereof out as illustrated to create complemental curved flange ends or tongues 22*, and the sections A and B have been folded or bent to the positions they occupy relatively to the bottom I? in the completed pan to create the V-shaped flap I8, as shown in Fig. 8, the flanges H! are bent outwardly as illustrated in Fig. 7. Thereupon the reinforcing wire frame it; is placed to rest snugly in the curved juncture Zone between the flanges l4 and the outside of the pan walls, with the corners of the frame l5 disposed in alignment with the cut away corners of the sheet and approximately coinciding with the aligned points 20 and 2!.

The flanges M are then bent downwardly and inwardly to embrace the wire frame l5 and terminate with their longitudinal edges in close proximity to the outer surface of the pan walls. The adjoining curved end edges 22 of the flanges hi which meet at the points 26] and 2!, then abut at each corner of the sheet, flush one against the other, to create a seam 23 as illustrated in Fig. 8 of the drawings, the adjoining curved ends of the flanges M accommodating and following the a curve or contour of the wire frame 15 to create a substantially straight, smooth seam between the adjoining edges of the flanges it. At this seam 23-, the ends of the flanges N do not overlap nor are there any exposed edges. In other words, the edges of the tongues 22 abut each other to cause the wire l5 to be completelycov- 'ered at the corner.

The straps 25 which coast with and extend across the aligned ends of the pans H], H and 12 to form a unitary pan assembly are secured to the associated pan end wall 53 by means of rivets 24 which penetrate the strap 25 and the V-shaped flap I8 whereby no parts of the rivets 2d are exposed inside the pans to contact with the contents thereof. Longitudinal beads or corrugations 26 are formed along the top and bottom edges. of said straps 25, the bead 26 at the upper edge being arranged to rest against the bead l4 containing the reenforcing wire l5 at the upper edge of the pan. These beads 25 along the up- "per edges of the straps 25 extend almost flush with the limits of the adjoining beads M of the pan end walls i3 and protect the beads M from shocks, bumps or jars which might otherwise damage said, beads and pan ends. The lower beadifi may also serve to limit the nesting action of a plurality of pan sets when stacked in nested relation. At each of its ends, the strap 25 is provided with an car 28 of any suitable shape and construction, which is bent laterally to assume a substantially right angular position to "construction to strap 25, having beads or corrugations 2'! formed along the top and bottom longitudinal edges thereof. The bead 21 at the upper edge, like the bead 26 at the upper edge of the straps 25, is arranged to rest snugly against the underside of the bead I' l containing the re' inforcing wire 15 at the upper'edge of the pan wall associated therewith. An ear 3| is formed at the edge of the strap 30 adjoining the end of the strap 25, which ear 3| is bent outwardly'and inwardly upon itself and thus be interposed between the strap 30 and the ear 28 of the strap 25. Connection of the strap 30 and the ear 2810f the strap 25 is established by means of a rivet or other suitable fastening means 33 passing through the ear 3i of the strap 33 and the ear 28 of the strapi25, and having the head thereof positioned between the strap and the inner surface of the ear 3i of the strap 36 whereby .no parts of the rivet 33 are exposed inside the pan, as disclosed in Fig. 4.

Connection of the strap 39 to the pan wall thereunder may be secured by means of lugs 34 struck from the upper edge of the strap 30, formjacent to the exposed edges of the ear Z8,.which overlaps the strap 30, is formed orbent outwardly to create a boss 35 following the outer andlower edges of the ear 28, from approximately the up-- per bead 21 of the strap 30 to the lower bead thereof. This boss is of such height that it project outwardly from the face of the; strap 30 a distance greater than the thickness of the ear 3| or of the combined thicknesses of the ears 3! and 28, as desired. The outer surface of this boss is smooth and closely adheres to and follows the contour of the adjoining edge of the ear 28. The

remote side of the boss 35 merges with that portion 36 of the strap 30 which slopes upwardly from the body of the strap 30, said slopingportion 36 being produced in the forming of the boss 35.

From the foregoing, it is apparent that the joint between the strap 30 and the strap 25 is fully and wholly protected by the boss 35 so that any rough metallic edges on the ear 28- are not normally contacted and other adjoining pan sets in the oven or elsewhere cannot hook or engage the ear 2!! or the joint between the side strap 25 and the end strap31li Furthermore, the creation of the boss 35 protects and strengthens the corner of the strap and at the same time causes a closer adher'ence'be tween the .body of the strap 30 andthe wall or the pan than would otherwise be possible.

It is also apparent that the lugs 34 providea strong, rigid connection between the.- strap 30 and the pan wall and bead associated therewith,

What is claimed is:

. 1. In a baking pan set, the combination with a plurality of pans, of a strap coacting with the. aligned end walls of said pans, a lateral ear formed at the end of said strap, an'auxiliary' strap coacting with the side wall of the end' pan of the set and positioned under the" ear aforesaid, means for securing said ear to-said auxiliary strap, and means for protecting the joint between said ear and said auxiliary strap 7 2. In a baking pan set, the combination with a plurality of pans, straps coacting with the exposed walls thereof, an ear on: one" of said straps? overlapping the adjoining end of the other of said straps and secured thereto, and a boss formed on the other of said straps following the contour of the exposed edge of said ear.

3. In a baking pan set, the combination Wit a plurality of pans, straps coacting with the exposed walls thereof, an ear on one of said straps overlapping an end portion of said strap, an ear formed on a cooperating strap overlapping and secured to said ear on the first named Strap, means for securing said straps in rigid assembly, and a raised boss formed on said first named strap adjoining the outer edges of the ear on the cooperating strap and following the contour thereof, the body of said first named strap adjoining said boss being sloped outwardly and merged with the boss aforesaid.

4. In the making of a baking pan set comprising a plurality of pans with outer beaded edges held together by a surrounding frame with a longitudinal marginal corrugation adjacent its upper edge, the step of flattening a portion of said corrugation to extrude said portion upwardly above the marginal edge of the frame to form a lug lying between the bead and wall of a pan.

5. A baking pan set, including: a plurality of pans, a frame surrounding said pans including a plurality of straps, an ear on the end of one of said straps bent back upon the strap, an ear on the end of an adjoining strap overlapping said bent back ear, and a rivet joining said ears.

6. A device as claimed in claim 5 in which the strap with the bent back ear is provided with a raised boss adjacent said ear. I

'7. A device as claimed in claim 5 in which the strap with the bent back ear is provided with a raised boss adjacent said ear, the top of said boss being substantially level with the outer surface of the second mentioned ear.

8. The combination with a plurality of baking pansarranged in spaced parallel relation and having flanges formed at the edges of the outer walls thereof, of a wire encircling each of said pans and engaged by the. flanges of the asso-' ciated pan whereby the sidesand corners of the wire are completely covered, a frame encircling all of said pans including a plurality of straps, an ear on the end of one of said straps bent back upon. the strap, an ear on the end of anadjoining strap overlapping said bent back ear, a rivet joining said ears, and means for, protectingthe joint between said straps. v

9. A baking pan set, including: a plurality of pans with beads on their outer edges, a frame surrounding said pans, and a longitudinal marginal corrugation adjacent the upper edge of said frame, said corrugation having a flattened upwardly extruded portion adapted to lie between the bead and wall of a pan.

JOSEPH G. JACKSON. 

